EP0797634B1 - Peinture a faible pouvoir emissif dans la gamme du rayonnement thermique - Google Patents

Peinture a faible pouvoir emissif dans la gamme du rayonnement thermique Download PDF

Info

Publication number
EP0797634B1
EP0797634B1 EP95917911A EP95917911A EP0797634B1 EP 0797634 B1 EP0797634 B1 EP 0797634B1 EP 95917911 A EP95917911 A EP 95917911A EP 95917911 A EP95917911 A EP 95917911A EP 0797634 B1 EP0797634 B1 EP 0797634B1
Authority
EP
European Patent Office
Prior art keywords
binder
refractive index
wavelength range
range
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95917911A
Other languages
German (de)
English (en)
Other versions
EP0797634A1 (fr
Inventor
Gerd Hugo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Construction Research and Technology GmbH
Original Assignee
Hugo Gerd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hugo Gerd filed Critical Hugo Gerd
Publication of EP0797634A1 publication Critical patent/EP0797634A1/fr
Application granted granted Critical
Publication of EP0797634B1 publication Critical patent/EP0797634B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B29C70/585—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres incorporation of light reflecting filler, e.g. lamellae to obtain pearlescent effet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0078—Pigments consisting of flaky, non-metallic substrates, characterised by a surface-region containing free metal
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/32—Radiation-absorbing paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/69—Particle size larger than 1000 nm
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
    • F24S20/61—Passive solar heat collectors, e.g. operated without external energy source
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/84—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by UV- or VIS- data
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C01P2004/34—Spheres hollow
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Definitions

  • the invention relates to a paint that has a low Has emissivity in the area of thermal radiation.
  • US-A-4 311 623 describes a paint containing a has low emissivity in the area of thermal radiation and for use on metal surfaces, especially as Camouflage paint for warships, is provided.
  • Pigments are aluminum, zinc sulfide, antimony trisulfide and blue pigments indicated.
  • Fillers can a. Be alumina and silicone alkyl resin binder. The low emissivity in the area of thermal radiation achieved by the high proportion of aluminum.
  • GB-A-1 074 891 describes a process for the production of Infrared radiation-reflecting pigments indicated that contain a compound that is highly reflective in the infrared, those from the group of sulfides, selenides and tellurides is selected. These pigments have a high Reflectivity for wavelengths above 7 ⁇ m and can in paints e.g. used with synthetic binders become.
  • Known paints essentially consist of binders, pigments and various additives.
  • the binders and the embedded pigments usually have a high absorption in the area of heat radiation and thus also have a high emission of heat radiation.
  • An example of this is a wall painting of a house exterior wall based on silicate.
  • the stored pigments which mainly consist of lime, have, like the silicate-based binder, high absorption bands in the range of heat radiation in the thermal infrared range from 3 to 100 ⁇ m.
  • the emissivity of the house wall in the area of thermal radiation is> 90%. This means that in addition to the heat loss via convection, i.e.
  • Radiator reflective foils Commercially available.
  • the metallic surface of the reflective foils only absorbs approx. 10 up to 20% of heat radiation. The difference to 100% is in the Space, in this case the radiator, is reflected.
  • Unfortunately find these reflective films probably because of their metallic appearance no acceptance and therefore only rarely used.
  • a complete lining would be anyway an apartment with such reflective foils does not make sense since it allow no or too little vapor diffusion and on the other hand make a Faraday cage out of the room would. Nor does it correspond to the aesthetic Ideas about the design of an apartment.
  • the object of the invention is therefore to improve To create paint, with the help of which energy can save. Furthermore, a method for producing Layered pigments can be found in these Paint can be used.
  • the product from the refractive index of the individual particle in the thermal Infrared range and the diameter of the particle in the substantially equal to half the mean wavelength of the Wavelength range is in which the paint is a low emitting effect.
  • Low Shifts result from the refractive index of the Binder in which the particles are introduced.
  • the bigger the refractive index of the binder shifts the more the middle wavelength to the longer wavelength range.
  • the percentage of filling of the particles in the Binder based on the volume of the entire layer at 20 to 70 percent, especially 30 to 50 percent.
  • the degree of reflection or emission is determined by the Difference between the refractive index of the binder and the refractive index of the embedded particles. Each the greater the difference, the higher it is desired reflection.
  • the refractive indices of Binder with high transparency in the field of Heat radiation is usually in the range from 1.3 to 1.7. So there is a big difference in the refractive index especially if the refractive index of the Particle is larger than that of the binder. Preferably it should be in the range 2 to 4, but also higher Refractive indices of the particles are conceivable. Is the Refractive index of the particle smaller than that of the binder, if possible, it should be in the range of air 1.
  • the range in which the low emission or higher reflection is to be achieved also depends on the size of the difference between the refractive index of the binder and that of the particle. The greater the difference in the refractive index of the two materials, the greater the bandwidth around the chosen medium wavelength.
  • the militarily relevant area of the atmospheric window can be designed to be low-emitting or reflective at 8 - 14 ⁇ m.
  • the area at 8 - 14 ⁇ m relevant for 300 K lamps, in which the atmosphere is highly transparent and thus allows energy to enter space, can be designed to be low-emitting or reflective. Subsequent resonances result in the likewise relevant atmospheric window at 3 - 5 ⁇ m up to the range of visible light.
  • All materials with high transparency in the area of thermal radiation that have a larger or smaller refractive index than the binder in the area of thermal radiation can be considered as the material for the embedded particles.
  • materials for the particles dispersed in the binder which can be selected in particular from the group of the following: germanium, silicon, metal sulfides such as lead sulfide, metal selenides such as zinc selenide.
  • Metal tellurides or tellurium itself chlorides such as sodium and potassium chloride, fluorides such as calcium fluoride, lithium fluoride, barium fluoride and sodium fluoride, antimonides such as indium antimonide.
  • organic or also inorganic binders with high transparency in the area of heat radiation colloidal metal powder whose particle size is in the range 0.05 to 1 ⁇ m to 10 to 50 Load volume percentages so that the colloidal particles are evenly distributed in the binder are.
  • the binder thus loaded is dried and, after drying, to the desired one Grain size, which depends on the refractive index of the material obtained, grind. Due to the extremely small size of the colloidal metal particles, none are created disadvantageous increases in reflection in other wavelength ranges.
  • the refractive index of Polyethylene melt used as a binder increase from 1.5 to 2.2.
  • the one so loaded Polyethylene was then cooled with liquid nitrogen and the desired one Particle size down to 2.5 ⁇ m.
  • the low emission in the paint according to the invention is achieved primarily as a result is that the refractive indices of embedded particles and binders differ
  • the low emission can also be achieved by embedding air a filling with a lower refractive index, can be achieved in a binder.
  • the same requirements apply here as in the case already described.
  • a optimal effect is obtained when the diameter of the air-filled cavities essentially is as large as half the medium wavelength of the range in which you have a low Emission or high reflection desired
  • the cavities can be done mechanically brought into the binder by spraying processes or by known chemical reactions become.
  • Another way to use a low emissive paint represent, is platelet-shaped, layered To store pigments, their materials in Wavelength range of heat radiation is transparent and come from the series of materials already mentioned can or from itself in the field of thermal radiation transparent materials, the refractive index of which Artificial storage of colloidal metal particles was discontinued.
  • paints for the cosmetic industry or also for the auto industry are platelet-shaped Interference pigments known.
  • DE-OS 32 21 045 Pearlescent pigments based on coated Mica scale described. Their effectiveness is limited however, on the visible area, since their interference-generating dimensions especially for the area of visible light are dimensioned and the materials used in the area of thermal radiation are transparent, but have an absorbent effect.
  • manufacturing processes are also known in which Paint layers on a running dryer belt e.g. with a Squeegee can be applied to subsequently pigments to be crushed.
  • the range of wavelengths within which to be reflected is due to the thickness of the individual layers adjustable.
  • Interference pigments are obtained after drying and grinding with high reflection or low emission in the range of Heat radiation, which is transparent to heat radiation Binder are introduced and together a Paint with effectiveness in the area of heat radiation represent.
  • Such binders are used in the context of the invention preferred, which is high in the area of thermal radiation Have transparency, such as Cyclo or chlorinated rubber and bitumen binders. Should also have good resistance to Oil, petrol and chemicals are present in the Invention preferred binder that from the group of Polyurethanes, acrylates, PVC copolymers, polyethylene-vinyl acetate copolymers, Butyl rubber and silicone alkyd resins comprehensive group can be selected.
  • aqueous polyethylene-based binders such as Poligen PE and Poligen WEl from BASF, Ludwigshafen, or mixtures of aqueous polyethylene binder with aqueous Acrylate binders are used.
  • Hollow microspheres were placed in an aqueous dispersion of Poligen WE1, a polyethylene oxidate from BASF based on a material that is transparent in the area of thermal radiation of silicon and calcium fluoride as well as various oxides to reduce the melting point to 50 Percentage of volume introduced
  • the diameter of the hollow microspheres ranged from 30 to 80 ⁇ m with wall thicknesses in the range of 1 to 3 ⁇ m.
  • the mixture was made with ultra fine (Diameter less than 1 ⁇ m) White pigments made of zinc sulfide tinted white and then measured with regard to their emission properties in the area of thermal radiation. It was an emissivity of 30% (reflection 70%) over the entire area of thermal radiation Only in the 4 to 6 ⁇ m range was the emissivity 65% (reflection 35%).
  • Transparent layered pigments spotted your surface dimensions under a microscope were 10 to 20 ⁇ m and their layer thickness was 4 to 6 ⁇ m. Due to the layer structure with different Refractive indices, the layered pigments had a high reflection in the area heat radiation.
  • the layered pigments were modified to 25 volume percent Dispersion Poligen WE1 from BASF introduced and after tinting with ultrafine (Diameter less than 1 ⁇ m) White pigments colored white in the wavelength range of heat radiation measured. The emission in the wavelength range 6 to 14 ⁇ m was included 35% (reflection 65%) and in the wavelength range 2 to 5 ⁇ m at 70% (reflection 30%).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Nanotechnology (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
  • Road Signs Or Road Markings (AREA)
  • Luminescent Compositions (AREA)

Claims (12)

  1. Peinture à faible pouvoir émissif et/ou à fort pouvoir réflectif dans la plage de longueurs d'onde du rayonnement thermique, comprenant :
    un liant, à haute transparence dans la plage du rayonnement thermique, et
    des particules, dans ce liant, qui présentent, dans cette plage de longueurs d'onde, une haute transparence et un indice de réfraction différent de l'indice de réfraction du liant,
       caractérisée en ce que
       le produit, calculé à partir de l'indice de réfraction de la particule individuelle, dans la plage des infrarouges thermiques, et du diamètre de la particule, est sensiblement identique à la moitié de la longueur d'onde moyenne dans la plage de longueurs d'onde dans laquelle la peinture doit avoir un faible pouvoir émissif.
  2. Peinture selon la revendication 1, caractérisée en ce que les particules dispersées dans le liant sont composées au moins d'un matériau qui est sélectionné dans le groupe constitué du germanium, silicium, sulfures métalliques, séléniures métalliques, tellurures métalliques, tellure, chlorures, fluorures et antimoniures.
  3. Peinture à faible pouvoir émissif et/ou à fort pouvoir réflectif, dans la plage de longueurs d'onde du rayonnement thermique, comprenant :
    un liant à haute transparence dans la plage du rayonnement thermique, et
    des particules, dans ce liant, qui présentent dans cette plage de longueurs d'onde une haute transparence et un indice de réfraction différent de l'indice de réfraction du liant,
       caractérisée en ce que
       les particules sont des microsphères creuses, d'un diamètre de 5 à 500 µm, et sont remplies d'un gaz qui n'est pas absorbant dans la plage du rayonnement thermique, et le matériau de paroi est transparent dans cette plage et présente un indice de réfraction identique ou supérieur à celui du liant.
  4. Peinture à faible pouvoir émissif et/ou à fort pouvoir réflectif, dans la plage de longueurs d'onde du rayonnement thermique, comprenant :
    un liant à haute transparence dans la plage du rayonnement thermique, et
    des particules, dans ce liant, qui présentent dans cette plage de longueurs d'onde une haute transparence et un indice de réfraction différent de l'indice de réfraction du liant,
    caractérisée en ce que
    les particules sont constituées d'un pigment se présentant en couches, le nombre de couches étant d'au moins trois, une première couche, intérieure, ayant un plus petit indice de réfraction que les deux couches extérieures.
  5. Peinture selon la revendication 4, caractérisée en ce que la plage de longueurs d'onde, à l'intérieur de laquelle on doit réfléchir, est réglable par le biais de l'épaisseur des différentes couches.
  6. Peinture selon la revendication 4 ou 5, caractérisée en ce que le degré de chargement, en pourcentage, du liant par les particules, en se référant au volume de la couche globale, est de 10 à 70 %, de préférence de 20 à 50 %.
  7. Peinture selon la revendication 1, caractérisée en ce que le matériau d'où sont constituées les particules contient des particules métalliques colloïdales d'un diamètre de 0,05 à 1 µm.
  8. Peinture à faible pouvoir émissif et/ou fort pouvoir réflectif dans la plage de longueurs d'onde du rayonnement thermique, constituée d'un liant à haute transparence dans cette plage de longueurs d'onde,
    caractérisée en ce que
    les inclusions de gaz contenues dans le liant sont de l'ordre de longueur de 5 µm à 50 µm.
  9. Peinture selon l'une des revendications précédentes,
    caractérisée en ce que le liant comprend au moins un matériau sélectionné parmi les polyuréthannes, acrylates, polymérisats mélangé de PVC, polyéthylène/polymerisats mélangés d'acétate de vinyle, caoutchouc au butyle et résines silicone-alkyde, liants aqueux modifiés à base de polyéthylène, liants aqueux à base d'acrylate et des mélanges de liants aqueux à base de polyéthylène avec ceux à base d'acrylate.
  10. Procédé de fabrication de pigments à couches,
    caractérisé en ce que
    sur une première couche, constituée d'un matériau transparent dans la plage du rayonnement thermique, avec un premier indice de réfraction dans cette plage de longueurs d'onde, est appliquée une deuxième couche constituée d'un matériau transparent dans cette plage de longueurs d'onde, ayant un deuxième indice de réfraction et, sur celle-ci, est appliquée une troisième couche constituée d'un matériau transparent dans cette plage de longueurs d'onde, avec un troisième indice de réfraction, et en ce que, après séchage, ces couches sont broyées pour former des pigments.
  11. Procédé selon la revendication 10, caractérisé en ce que l'indice de réfraction de la deuxième couche est inférieur à l'indice de réfraction de la première et de la troisième couches.
  12. Procédé selon la revendication 11, caractérisé en ce que les indices de réfraction de la première et de la troisième couches sont identiques.
EP95917911A 1994-05-25 1995-05-11 Peinture a faible pouvoir emissif dans la gamme du rayonnement thermique Expired - Lifetime EP0797634B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4418214 1994-05-25
DE4418214A DE4418214C2 (de) 1994-05-25 1994-05-25 Anstrichstoff mit niedrigem Emissionsvermögen im Bereich der Wärmestrahlung
PCT/DE1995/000644 WO1995032251A1 (fr) 1994-05-25 1995-05-11 Peinture a faible pouvoir emissif dans la gamme du rayonnement thermique

Publications (2)

Publication Number Publication Date
EP0797634A1 EP0797634A1 (fr) 1997-10-01
EP0797634B1 true EP0797634B1 (fr) 2001-07-04

Family

ID=6518919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95917911A Expired - Lifetime EP0797634B1 (fr) 1994-05-25 1995-05-11 Peinture a faible pouvoir emissif dans la gamme du rayonnement thermique

Country Status (12)

Country Link
EP (1) EP0797634B1 (fr)
AT (1) ATE202792T1 (fr)
AU (1) AU685629B2 (fr)
CA (1) CA2190997A1 (fr)
CZ (1) CZ292176B6 (fr)
DE (2) DE4418214C2 (fr)
DK (1) DK0797634T3 (fr)
HU (1) HUT77826A (fr)
MX (1) MX209759B (fr)
NZ (1) NZ285069A (fr)
PL (1) PL180236B1 (fr)
WO (1) WO1995032251A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19513372A1 (de) * 1995-04-08 1996-10-10 Wicona Bausysteme Gmbh Außenwandaufbau an Gebäuden, insbesondere Paneel einer Gebäudewand
DE19650300A1 (de) * 1996-12-04 1998-06-10 Gerd Hugo Anstrichstoff
DE19736435C2 (de) 1997-08-21 1999-09-09 Sto Ag Fassadenabdeckung
EP1180649A1 (fr) * 2000-08-08 2002-02-20 Lothar Dr.-Ing. Siebel Revêtement extérieur pour réduire les pertes thermiques des parois structurales de bâtiments tels que les murs de façades
DE10044216A1 (de) 2000-09-07 2002-05-02 Fraunhofer Ges Forschung Beschichtungsmaterial für multifunktionelle, superphobe Schichten
ATE341746T1 (de) * 2000-12-16 2006-10-15 Siebel Lothar Prof Dr Ing Oberflächenbeschichtung zur verbesserten wärmeübertragung
DE10102789A1 (de) * 2001-01-22 2002-08-01 Gerd Hugo Beschichtung mit geringer solarer Absorption
AUPR554501A0 (en) * 2001-06-07 2001-07-12 Lehmann Pacific Solar Pty Limited Radiative cooling surface coatings
EP2420539A1 (fr) * 2001-10-25 2012-02-22 Panasonic Electric Works Co., Ltd Substrat support de film mince composite, substrat support de film mince conducteur transparent et corps électroluminescent de surface
DE102005061684A1 (de) * 2005-12-21 2007-06-28 Eckart Gmbh & Co. Kg Weißes, IR-Strahlung reflektierendes Pigment, dessen Herstellung und Verwendung
DE102007028842A1 (de) * 2007-06-20 2008-12-24 Eckert Gmbh Dunkle, IR-Strahlung reflektierende Pigmente, Verfahren zu deren Herstellung und Verwendung derselben
ITTO20100391A1 (it) * 2010-05-11 2011-11-12 Finmeccanica Societa Per Azioni Metodo di realizzazione di una vernice atta a modificare l'emissione infrarossa di una superficie
DE102010038005A1 (de) 2010-10-06 2012-04-12 Gerd Lehnert Verfahren und Vorrichtung zum Heizen von Räumen
EP2753666B1 (fr) 2011-09-06 2020-04-08 Basf Se Rayonnement infrarouge absorbant le blanc et les couleurs claires
CN109677035A (zh) * 2018-12-27 2019-04-26 中国建筑材料科学研究总院有限公司 一种低红外发射率隔热材料及其制备方法
CN112126285B (zh) * 2020-09-27 2025-03-11 严继光 一种增强热辐射涂料及应用、使用该涂料的辐射换热装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227594B (de) * 1954-05-04 1966-10-27 Eltro G M B H & Co Ges Fuer St Infrarotreflektierende, feuerfeste UEberzuege bildende Massen
DE977550C (de) * 1954-07-12 1967-02-02 Eltro G M B H & Co Ges Fuer St Verfahren zur Herstellung Infrarot gut reflektierender Pigmente
US4311623A (en) * 1981-03-20 1982-01-19 The United States Of America As Represented By The Secretary Of The Navy Blue-gray low infrared emitting coating
DE3606691A1 (de) * 1986-02-28 1987-09-03 Industrieanlagen Betriebsges Materialien zur multispektralen tarnung im visuellen, ir- und mikro/millimeterwellen-bereich
US4916014A (en) * 1987-10-30 1990-04-10 Paul Weber I.R. reflecting paint
DE3832555A1 (de) * 1988-09-24 1990-07-12 Herberts Gmbh Verwendung von anstrichstoffen mit hohem reflexionsvermoegen im spektralbereich der waermestrahlung zur beschichtung von zielobjekten, sowie zielobjekte erkennbar mit waermebildgeraeten
ES2089356T3 (es) * 1991-12-21 1996-10-01 Roehm Gmbh Cuerpo reflectante de infrarrojo.

Also Published As

Publication number Publication date
NZ285069A (en) 1997-12-19
HUT77826A (hu) 1998-08-28
DE59509389D1 (de) 2001-08-09
MX209759B (es) 2002-08-19
MX9605603A (es) 1998-05-31
DE4418214A1 (de) 1995-11-30
WO1995032251A1 (fr) 1995-11-30
DK0797634T3 (da) 2001-09-24
PL317355A1 (en) 1997-04-01
CA2190997A1 (fr) 1995-11-30
EP0797634A1 (fr) 1997-10-01
AU2405495A (en) 1995-12-18
ATE202792T1 (de) 2001-07-15
HU9603232D0 (en) 1997-01-28
CZ292176B6 (cs) 2003-08-13
PL180236B1 (pl) 2001-01-31
AU685629B2 (en) 1998-01-22
DE4418214C2 (de) 1999-02-04
CZ341196A3 (en) 1997-02-12

Similar Documents

Publication Publication Date Title
DE4418214C2 (de) Anstrichstoff mit niedrigem Emissionsvermögen im Bereich der Wärmestrahlung
DE19501114C2 (de) Anstrichstoff mit reflektierenden Eigenschaften in zwei Wellenlängenbereichen und absorbierenden Eigenschaften in einem dritten Wellenlängenbereich
DE69534634T2 (de) Mehrschichtige interferenzplättchen enthaltende hochchromatische anstrichstoffe
DE19540682A1 (de) Beschichtungsmittel zur Herstellung von Wärmestrahlen reflektierenden Überzügen
EP2348074B1 (fr) Pigment blanc reflechissant le rayonnement infrarouge, sa production et son utilisation
DE2160907C3 (de) Retroreflexionsanordnung und hierfür geeignete Retroreflektoren
DE1519232C3 (de) Überzugsmittel zur Herstellung diffus-reflektierender Überzüge
EP1414645A1 (fr) Corps en matiere plastique a faible conductibilite thermique, a haute transmission de la lumiere et a absorption dans la zone infrarouge proche
DE3884603T2 (de) Sonnenwärmeisolierungsanstrichzusammensetzung und damit angestrichene strukturen.
WO2006058782A1 (fr) Element plat fonce a conductivite thermique minime, a densite reduite et a absorption solaire faible
US20010044489A1 (en) Coating substance with low emissivity in the heat radiation range
EP0548822A2 (fr) Matériau réfléchissant les rayons infra-rouge
DE19849330A1 (de) Flächiges Wärmeschutzelement
DE69927355T2 (de) Film mit abfallender helligkeit für infrarot
EP0246342B1 (fr) Matériaux de revêtement à émissivité réduite dans le domaine spectral du rayonnement thermique
DE69426915T2 (de) Verfahren zur Herstellung einer Verbundplatte aus Polycarbonat zur Verwendung in Gebäuden, insbesondere in Treibhäusern
DE4418215A1 (de) Tarnfarbe mit niedrigem Emissionsvermögen im Bereich der Wärmestrahlung
DE3432998A1 (de) Anstrichstoffe mit niedrigem emissionsvermoegen im spektralbereich der waermestrahlung
WO2012167865A1 (fr) Revêtement réfléchissant sélectif par rapport à la longueur d'onde
DE3882399T2 (de) Einbrennlackierung und ihre Anwendung.
DE102012105226A1 (de) Infrarot reflektierendes Betonprodukt
DE102013004689A1 (de) Niedrigemittierende Innenwandbeschichtung
DE69404882T2 (de) Zusammensetzungen mit geringem Glanz für hoch-reflektierende Filme im Infrarot-Bereich
DE1519226C3 (de) überzugsmittel zur Herstellung von reflex-reflektierenden Überzügen
WO2009103375A1 (fr) Plaques nervurées à rayonnement permettant la photosynthèse

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19961023

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK FR GB IT LI NL SE

17Q First examination report despatched

Effective date: 19980130

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 202792

Country of ref document: AT

Date of ref document: 20010715

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010706

REF Corresponds to:

Ref document number: 59509389

Country of ref document: DE

Date of ref document: 20010809

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BUECHEL, KAMINSKI & PARTNER PATENTANWAELTE ESTABLI

ET Fr: translation filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH

Free format text: HUGO, GERD#AN DER POINT 7#86938 SCHONDORF (DE) -TRANSFER TO- CONSTRUCTION RESEARCH & TECHNOLOGY GMBH#DR. ALBERT-FRANK-STR. 32#83308 TROSTBERG (DE)

Ref country code: CH

Ref legal event code: NV

Representative=s name: NOVAGRAAF INTERNATIONAL SA

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

NLS Nl: assignments of ep-patents

Owner name: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH

Effective date: 20070123

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH

Free format text: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH#DR. ALBERT-FRANK-STR. 32#83308 TROSTBERG (DE) -TRANSFER TO- CONSTRUCTION RESEARCH & TECHNOLOGY GMBH#DR. ALBERT-FRANK-STR. 32#83308 TROSTBERG (DE)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20140530

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20140523

Year of fee payment: 20

Ref country code: CH

Payment date: 20140523

Year of fee payment: 20

Ref country code: IT

Payment date: 20140526

Year of fee payment: 20

Ref country code: SE

Payment date: 20140528

Year of fee payment: 20

Ref country code: AT

Payment date: 20140527

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20140526

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140731

Year of fee payment: 20

Ref country code: BE

Payment date: 20140626

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140530

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59509389

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Effective date: 20150511

REG Reference to a national code

Ref country code: NL

Ref legal event code: V4

Effective date: 20150511

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20150510

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 202792

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150511

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20150510